math not showing 2 digits

[rkstengel]

I am trying to multiply two numbers

short totalSharesPurchased = 1024,
stockPurchasePrice = 39034.88,
stockSalePrice = 22374.40;

short gain_loss_amount = stockSalePrice - stockPurchasePrice;

I need the output 'cout' to show 2 decimal places. I think this is related to type of variables declared. Thoughts?
Thanks

[vlad from moscow]

You defined floating point numbers as integers of type short, So the numbers have no fractional parts. You should declare them as float or double.

[Dash]

Do you mean something like this:

#include <iomanip>
#include <iostream>

int main()
{
        float x = 5.4321;
        std::cout << setprecision(2) << x << std::endl;

        return 0;
}

[rkstengel]

I tried making float and double, then the math round up so instead of 39034.88 I get 39034.9 in the answer.

[vlad from moscow]

double stockPurchasePrice = 39034.88;
double stockSalePrice = 22374.40;
 
double gain_loss_amount = stockSalePrice - stockPurchasePrice;

std::cout << std::fixed << std::setprecision( 2 ) << gain_loss_amount << std::endl;

The output is:

-16660.48

[rkstengel]

That looks good. New to c++ and in beginning class so have not leaned that yet but can not believe there is not a simpler way... Thank you!!!